He is proficient in understanding counterpoint.

This collective medicine helps us maintain our health.

The company is facing an economic downturn.

During his stay in Kagoshima, he deeply experienced the culture of Kagoshima.

I once stayed in Kagoshima.

A massacre took place during that war.

He is an absolutely irreconcilable enemy of mine.

As an interlocutor, he always provides a new perspective.

He taught me the correct posture for playing the piano.

His opinion is the polar opposite of mine.